Pulley-block.



P. J. GEORGESON.

PULLEY BLOCK.

APPLICATION FILED MAY 6, 1911.

1 ,O22,41 1 Patented Apr. 9, 1912.

Z0 19 1 5 Wnes l I Inventor l by I It I Attorney;

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UNITED STATES PATENT OFFICE.

PETER J. GEORGESON, 0F TUSTIN, WISCONSIN.

PULLEY-BLOCK.

To all whom it may concern.

Be it known that I, Pn'rnn J. GnoRonsoN, a citizen of the United States,residing at Tustin, in the county of \Vaushara and State of \Viseonsin,have invented a new and useful Pulley-Block, of which the following is aspecification.

The device forming the subject matter of this application, is adapted tobe employed for the elevation and transportation of bread and otherarticles, commonly handled in retail stores and elsewhere.

It is the object of the present invent-ion to provide means whereby asuitable container, of any desired form, may be elevated and held at apredetermined height.

WVith the foregoing, and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawings,Figure 1 shows the invention in perspective; Fig. 2 is aside elevation of the pulley and plant structure; Fig. 3 is a section onthe line 33 of Fig. 2; Fig. 41 is a fragmental side elevation of theportion of the structure shown in Fig. 2; and Fig. 5 is a sectionalelevation of a portion of the means whereby the device is connected withan overhead support.

The clamp and pulley structure appears most clearly in Figs. 2 and 3,and it will there be seen that this structure embraces a frame 7,consisting of four segmental, double-walled arms 25, certain of whichare prolonged to form depending parallel extensions 26. Between thewalls of the arms 25 of the frame, sheaves 6 are journaled for rotation.J ournaled for rotation in the extensions 26, are shaft-s 12, secured towhich are cooperating dogs 10 and 11, the dog 11 being provided with anangular arm 23, prolonged upon the outside of the extension 26 of theframe 7. The ends of the shafts 12 protrude through one of theextensions 26, the protruding ends of the shafts being equipped withintermcshing pinions 22. A retraetile spring 13 is secured at its lowerend to the arm 23 of the dog 11, the upper end of the spring 13 beingsecured to one of the arms 25 of the frame 7. To the arm 23Specification of Letters Patent.

Application filed. May 6, 1911.

Patented Apr. 9, 1912.

Serial No. 625.658.

is attached a flexible member 15. Journaled for rotation in theextensions 26 of the frame, above and below the dogs 10 and 11, arepairs of oppositely disposed rollers 8.

The container is shown in the form of a rectangular wire basket or tray,denoted by the character T. To the four corners of the tray T, flexibleelements 5 are secured. These flexible elements 5 are carried inconverging relation toward the frame 7, the flexible elements beingpassed inwardly, between the walls of the arms 25, over the sheaves 6,and thence downwardly, in a common plane, between the upper rollers S,between the dogs 10 and 11, and between the lower rollers 8, the freeends of the members 5 preferably extending, in close relation, acrossone edge of the tray T, as clearly shown in Fig. 1.

In connecting the frame 7 with an overhead support, a holder, denotedgenerally by the numeral 16 in Fig. 1, is provided. This holder 16 isequipped with a threaded, pointed end 17, merging into a cylindricalportion 18, having openings 19. In these openings 19 are adapted toregister, removably, spaced studs 20, outstanding radially from a finger21, secured by means of a nut 27, or in any other desired manner, to theupper end of the frame 7. The construction of the device, therefore, issuch that the frame 7 may readily be disengaged from a holder 16,disposed in a given location, and be assembled with another holder 16,so that the tray T may be elevated at different points about a store orfactory.

In practical operation, by drawing upon the flexible member 15, the dog11 will be tilted, the intermcshing pinions 22 effecting a tilting ofthe dog 10, whereupon the grip of both dogs 10 and 11. upon the flexiblemembers 5 will be released, it being then possible to pull downwardlyupon the free ends of the members 5, whereupon the members 5 will passover the sheaves 6, and between the rollers 8, elevating the tray T. Assoon as the flexible member 15 is released, the spring 13 will elevatethe arm 28 of the dog 11, the intermcshing pinions 22 causing both dogs10 and 11 to grip automatically, the flexible members 5. Owing to thefact that oppositely positioned rollers 8 are provided, above and belowthe dogs 10 and 11, when the said dogs are released from the flexiblemembers 5, it will be possible to draw the members 5 between the dogs 10and 11, without friction between the flexible members 5 and the dogs.

Having thus described the invention, what is claimed is l. A device ofthe class described comprising a frame; shafts journaled for rotationtherein; co-acting dogs secured to the shafts; intermeshing pinions uponthe shafts; pairs of oppositely positioned rollers journaled forrotation in the frame, above and below the dogs; and a sheave journaledfor rotation in the frame, above the uppermost pair of rollers.

2. A device of the class described comprising a frame; shafts journaledfor rotation therein; co-acting dogs secured to the shafts; intermeshingpinions upon the shafts; pairs of oppositely positioned rollersjournaled for rotation in the frame, above and below the dogs; a sheavejournaled for rotation in the frame, above the uppermost pair ofrollers; and spring means engaging one dog, to maintain the dogsnormally in co-acting relation.

3. A device of the class described comprising a frame including radial,double-walled arms, certain of which are prolonged, to form dependingextensions; sheaves journaled for rotation between the walls of thearms; co-acting dogs mounted in the extensions; and pairs of oppositelypositioned rollers journaled for rotation in the extensions, above andbelow the dogs.

4. A device of the class described comprising a frame including radial,double-walled arms, certain of which are prolonged to form dependingextensions; sheaves journaled for rotation between the walls of thearms; shafts journaled for rotation in the extensions; co-acting dogssecured to the shafts and located between the arms; intermeshing pinionssecured to the shafts, upon the outside of one of the extensions; pairsof oppositely disposed rollers journaled for rotation in the extensions,above and below the dogs; one of the dogs being provided with anangularly disposed arm, prolonged upon the outside of one of theextensions; and a retractile spring connecting the last mentioned armwith the frame.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

PETER J. GEORGESON.

Witnesses ARTHUR J. Joncnnsnn, BEN. A. BART, J r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

